Improvement in lamp-wick gages



JOSEPH A. PADDOOK, OF CHANDLERVILLE, ILLINOIS.

IMPRQVEMENT IN LAMP-WICK GAGES.

Specification forming part of Letters Patent No. 134,561, dated December 24, 1872.

To all whom it may concern:

Be it known that I, JOSEPH A. PADDOCK, of Ghandlerville, in the county of Cass, in the State of Illinois, have invented a Lamp-Wick Gage; and do hereby declare that the followin g is a full, clear, and exact description thereof, reference being had to the annexed drawextinguishment; and beyond these points it will be impossible, with this device attached, to turn the wick with the usual thumb-ratchet wheels unless the attached gage be altered. A disk with an are or segment cut out of its edge is set loosely upon the neck of the ratchet-wheel axle or wick-elevator, a washer being placed between said disk and the lamp-burner. Against the front of the said disk a small nut, running upon a thread cut on the neck of said axle, is screwed when the two points have been determinedt'. 6., high andlow light. The disk being detained by a pawl in its recessed arc. prevents the wick-elevator from being turned beyond these points and beyond the limits'of the said recessed disk.

The most convenient form of this device I construct as follows: A represents the oil-receiver or lamp proper; B, the lamp-burner; (J, the wick-tube; I), the thumb-disk of the wick-elevator; to, its axle, which has a screwthread, f, out upon it between the disk E and the thumb-disk D; E, a disk set loosely upon the axle or against a washer, g, which rests against the lamp-burner B. The disk has a segment, I), cut out of its edge of such a length as will allow the disk when engaged by the nut F with the axle a to keep the axle orwickelevator from turning beyond the extremities of the recess b when said recess is engaged by a detent, G. F, a nut with a lug or thumb-hold radiating from it, and which is screwed firmly against the disk E to set or prevent it from turning upon the wick-elevator axle a; G, a spring or pawl or other detent fastened to the burner or lamp, and having a claw which drops into the recess 1) of the disk E.

The operation of this invention is as follows: When the flame is at its lowest point, set the detent against the right end of the recess b of the disk E, and tighten the nut F against the disk so as to set the latter firmly upon the axle a. Now, when the disk D is turned either way the wick cannot be turned beyond proper points, or the highest safe light and the lowest flame, without extinction. This device, it will be seen, will be valuable where there are meddlesome children.

What I claim as my invention is-- 1. In combination with the common 1ampwick-elevating axle or, provided with thread f, the adjustable disk E with its recess 12 or equivalent, and detent G, substantially as delamp-wick gage I have hereunto set my hand this 6th day of November, 1872.

JOSEPH A. PADDOGK.

Witnesses;

HENRY W. WELLS, JAMES M. MonsE. 

